Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
+ *) A missing bounds check in the handling of the TLS heartbeat extension
+ can be used to reveal up to 64k of memory to a connected client or
+ server.
+
+ Thanks for Neel Mehta of Google Security for discovering this bug and to
+ Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
+ preparing the fix (CVE-2014-0160)
+ [Adam Langley, Bodo Moeller]
+
+ *) Fix for the attack described in the paper "Recovering OpenSSL
+ ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
+ by Yuval Yarom and Naomi Benger. Details can be obtained from:
+ http://eprint.iacr.org/2014/140
+
+ Thanks to Yuval Yarom and Naomi Benger for discovering this
+ flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
+ [Yuval Yarom and Naomi Benger]
+
+ *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
+ this fixes a limiation in previous versions of OpenSSL.
+ [Steve Henson]
+
*) Experimental encrypt-then-mac support.
Experimental support for encrypt then mac from
draft-gutmann-tls-encrypt-then-mac-02.txt
- To enable it set the appropriate extension number (0x10 for the test
- server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x10
+ To enable it set the appropriate extension number (0x42 for the test
+ server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
For non-compliant peers (i.e. just about everything) this should have no
effect.
WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
- NOTE: unfortunately the test server value (0x10) clashes with the draft
- ALPN extension. Until this is resolved the only way to check against the
- test server is to temporarily change the ALPN extension value (ugh!).
-
[Steve Henson]
*) Add callbacks supporting generation and retrieval of supplemental
Changes between 1.0.1e and 1.0.2 [xx XXX xxxx]
+ *) Keep original DTLS digest and encryption contexts in retransmission
+ structures so we can use the previous session parameters if they need
+ to be resent. (CVE-2013-6450)
+ [Steve Henson]
+
+ *) TLS pad extension: draft-agl-tls-padding-03
+
+ Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
+ TLS client Hello record length value would otherwise be > 255 and
+ less that 512 pad with a dummy extension containing zeroes so it
+ is at least 512 bytes long.
+
+ [Adam Langley, Steve Henson]
+
+ *) Add functions to allocate and set the fields of an ECDSA_METHOD
+ structure.
+ [Douglas E. Engert, Steve Henson]
+
*) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
avoids preferring ECDHE-ECDSA ciphers when the client appears to be
Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
This fixes a DoS attack. (CVE-2013-0166)
[Steve Henson]
+ *) Return an error when checking OCSP signatures when key is NULL.
+ This fixes a DoS attack. (CVE-2013-0166)
+ [Steve Henson]
+
*) Call OCSP Stapling callback after ciphersuite has been chosen, so
the right response is stapled. Also change SSL_get_certificate()
so it returns the certificate actually sent.